Pump.



No. 392.150. PATENTED JUNE 30, 1908. G. GRUSSBNDORF.

PUMP.

APPLICATION FILED MAR. 28, 1907.

2 SHEETS-SHEET l.

figa! PATENTED JUNE 30, 1908. G. GRUSSENDORF.

PUMP.

APPLICATION FILED MAR. 28, 1907.

2 SHEETS-SHEET 2.

Fay/2 Z UNITED srarns girar cierres.

p GEORG GRUSSENDORF, F HANOVER, GERMANY.

PUMP.

To all whom .it .may concern:

Beit'known that I, GEORG GnUssnNnonF, citizen of Germany, residing (at Hanover, Germany, have invented certain new and usefulImprovements .in Pumps; and l do hereby declare the following to be a full, clear,'and` exact description of the invention,

" such as will enable/others skilled in the art to provided eac available` ing plant nately supplied with compressed air, so that theliquidcontained in thebarrels is elevated to any height corresponding to the pressure As these pumps with the usual flap valves have not proved satisfaotor Y on account of the unrehability of the valves,

the V'arrangement is made according to the resent invention as follows:

-The drawing Figure" 1 represents a pumpaccording tothe present invention, barrels of which are provided with the pump and opened automatically 4flap valvesl closed Y bythe drivingmedium itself. Fig. Z'represents .another constructive form oi the arf rar'gpment for opening and'closing the valves. 'v 35V l I steam-or gas, which 1s e driving medium, viz., compressed air, generated 1n the usual Alli"11ns`u1nerby-4a pneumatic pump, boiler or the a like-anfdwhich is not shown isconducted in pipes n the drawing- A to avalve distributlon apparatus conslstm 'of the-valves 01.020304 1 g; 1.). Theseva ves areconnected in a convenientl mannerwith one or two pump b ar'relsd1 d2 by means of pi The lant. according fvalveo the barrel d1' and opened automatically by the compressed air, steam or gas itselff -Fory this-p itsilower extremity is connected in a convenient manner with the leversf and g, which es (Fig. 1

to ig. 1 shows the urpose the valve stem at are actuated by means of the diaphragms h 'andi (or, if desired by pistons) standing alterthe pressure of the 'pressure fluid. r The above-mentioneddiaphragme as well as their chambers and the levers f and g are located-ini a water-proof foundation box and all openings in the cover-plate-for the Specification of Letters Patent. Application led March 28, 1907. Serial No. 365,169.

mechanism located at Patented June 30, 1908.

l pneumatic feed pipes are made with hermctical joints and the opening lfor the valve stem is provided with a stuffing-box. The above-mentioned diaphragms consist preierably cach of an unperl'orate disk of leather covered on both sides with a layer of soft india rubber or impregnated with india rubber or other water.- proof material, can be reinforced by two or several disks of this kiiulfeombined in one. i

The supplying oi the pumpbarrels in duc time with compressed air as Well as exhausting the saine in succession is effected by the distributing valves 0 0 0B and C4 as shown in Fig, 1, which are actuated by the shai't l: provided with cams' adapted to the purpose. Thestem fm oieach` of these valves protrudes somewhat downwards from the interior valve chamber vto the cam surface and reaches upwards close to a flexible diaphragm, which is similar to the above-mentioned diaphragms, and which divides the valve into two isolated chambers, allowing however, on account of its flexibility, Ian external pressure exercised' by the stem upon the exterior side oi' the `diaphragm to be `transterred to the valve in order to open the same.

The above mentioned cams 'on the shaft c are arranged in such a manner that the valves 0 *03' and the valves 02 and 04 are opened during a shorter or longer period alternately in conformity with the required Iadmission or blowing-etici the compressed air.

Figl 2 represents another form of construction with one pum barrel, the l'lap valve (e) of which is opener and closed by two diaphragms arranged above the barrel, so that the diaphragms can be placed above the level of the iquid. For this iurpose the rods p and q are moved by the diaphragms and are rovided with the cross-heads t, a; another lead u is secured to the valve stein r, by means of a pivot link, such as ,a ball and socket joint or the like. These cross-heads are connected by two or more connectingrods w' w. The rods p and q and the valve stem 1' are guided in a convenient manner in transverse lconnecting pieces. Simple plants with only one pump barrel need not absolutely have two diap ragms; one of the latter may be omitted, if the valve 4is closed by spiral spring d, or Weight. The arrangement of two diaphragms, however, is 4always. ircferable, as the valve is closed by such a diaphragm with a stronger pull than the pressure exercised by the compressed air They leakages ofthe joint will not injuriously aiiect the good Working of the valve. A. greater reliability of the working of the pump is therefore obtained by the arrangement of two diaphragms as shown in the drawings.

The working of the present pump, the barrel of which and the delivery pipe are to be filled with liquid before the beginning of the operation, may be effected in such a manner that the'conipressed air after having forced the liquid from one barrel into the delivery pipe is either immediately blown-off in a reverse direction or utilized to partially fill the other barrel and pneumatic supply-pi es.

' The above mentioned distributing-va ves t have the advantage over ordinary distributing valves, that they close notonly by spring or weight but also by the driving-medium itself causing thus a reliable joint, while the closed hermeti'cally by the above-mentioned closing-diaphragm: Besides, thesevalves need little or no atten# tion and are cheap and simple.

In order to rotect the diaphragins from `the corrosive e 'ect of the steam the chamberI containing the diaphragms as well as the in terior chambers of the distributing-valvescan be lled with glycerin.

Claims: v

1. In a ump, two barrels situated below the water evel, each having an inlet and an outlet, an inwardly opening valve in each barrel between the inlet and outlet, Huid actuated means to mechanically o erate the valve, a pressure fluid supply, eed pipes each leading from the fluid supply to one of ally `open 'fluid supp the barrels on the discharge si e of its valve and to the valve closing mechanism for said barrel and to the valve o ening mechanism of the other barrel, distributing valves ar.- ran ed to supply' pressure iliuid to the said fee pipes alternately, and means arranged to operate at redetermined i'ixed intervals to control the istributing valves.

g 2. In a ump, \two barrels situated below' "the Water evel,'each having an inlet and an outlet, an inwardly opening valve in each barrel between theinletand outlet and below the latter, fluid actuated means to mechanicandclose the valve, a pressure Huid sup ly, feed pipes leading from the Iy to each of the barrels on the discharge side of its valve and'to its valve operating mechanism, exhaust pipes leading from each barrel and valve operating mechanism, distributing valves arranged to control the su ply of ressure fluid to said feed pipes, xhaust va ves arranged to control the exhaust pipes, and means operatin independently ofthe um supply and iscliarge to actuate the distri uting'and exhaust valves one barrel and operating mechanism seaiso evers having one armoperated upon by aY diaphragm, and a connection between the levers and the valve to mechanically open and close said valve according as the pressure Huid is introduced to one or the other diaphragm chamber, a pressure fluid sup ly; a feed pipe leading from the pressure ffiiid supplyl to each barrel on the dischar e side of its valve and to a diaphragm ham er of its valve operating mechanism and to the op osite diaphragm chamber of the otheriva ve operating mechanism, distributing valves arranged to control the inlet to each of the feed pipes, exhaust pipes re and from its valve operating mechanism, exhaust valves controlling the discharge from the exhaust pipes, cams arranged to actuate the distributing valvev of one barrel and the e haust valve of the second barrel and then ne distributing valve of the second barrel and the exhaust valve of the first barrel. 4. In a ump, two barrels situated below the water evel, each having an inlet and an outlet, an inwardly o ening valve in each barrel between the in et and outlet, valve for each barrel comrising iiuid pressure chambers, diaphragms', eversk having one arm operated upon by .a diaphragm, and a connection between the levers and the valve to mechanically open and close said valve according as the ressure iiuid is introduced to one or the ot er diahragm chamber, a pressure fluid sup ly, a eed pipe leading-from the pressure fluid) supply to each barrel on the discharge side of its valve and to a dia liragm chamber of its valve operating mechanism and to the op osite diaphragm chamber of the other va ve operating mechanism, distributing valves arranged to control the inlet to each of the feed pipes, exhaust pipes leading from each barre and from its valve o erating mechanism,

'exhaust valves contro ng the discharge from the exhaust pipes, the distributing valves and exhaust valves held closed by diaphragmsunder theinfluence of pressure Huid, and cams acting upon the stems of the distributing and exhaust valves to open said valves against the pressure fluid, said cams arranged to actuate the distributing valve of one barrel ond barrel and then the distributing valve of the second barrel the first barrel.

l 5. In a pump for elevating liquid by fluid pressure, a barrel situated below the water leading from each bar-l,

and the exhaust valve of the secand the exhaust valve ofl25 ,to direct the pressure fluid alternately on the level and having an inlet and an outlet, an

inwardly opening inlet valve interposed between the inlet and outlet, inlet valve o erat ing means comprising a diaphramn evice comprising two diaphragms each ooated in a closed chaniher, a mechanical connection 'between each of the diaphragms and the inlet valve, a pressure fluid supply, feed pipes leading from the fluid supply to the barrel on the discharge side of the valve and to each of the diaphragme, distributing valves arranged one hand to the interior of the barrel and to thek diaphragm chamber to close the inlet valve and on the other hand to the diaphragm chamber to open the inlet valve.

6. In a pump for elevating liquid by iluid ressure, a barrel situated below the water evel and having an inlet and an outletl an inwardly opening inlet valve interposed betweenjthinlet and outlet. inlet valve operating means comprising a diaphragm device conslsting of two members, a mechanical connection between each of the diaphragm members and the inlet valve, a pressure tluid supply, feed ipes leading from the fluid supply to the barre on the discharge. side of the valve and to each of the diaphravms, distributing valves arranged to direct the pressure fluid alternately on the one hand to the vinterior of the barrel and to the diaphragm chamber to close the inletJ valve and on the other hand to the diaphragm chamber to open the inlet valve.

In testimony whereof I hereunto aflx-myk signature in the presence of two witnesses.

GEORG G'RUSSENDORF.

l/Vitnesses:

ABRAHAM SCHLESINGER, Louis M UELLER. 

